CN106401297A - Improved idle lock of blade structure - Google Patents

Abstract

The invention discloses an improved idle lock of a blade structure. The improved idle lock of the blade structure comprises a lock body, an idle core and a rear lock cylinder. The idle core and the rear lock cylinder are arranged in an inner hole of the lock body front and back. The idle core is provided with an idle pin groove, a key hole and blade grooves. The idle core is further provided with a straight groove enabling the key hole and the blade grooves to communicate. Left blades or right blades and blade springs are arranged in the blade grooves. The idle pin groove is provided with an idle pin. The rear lock cylinder is provided with a locking and unlocking separation and reunion pin groove. Locking and unlocking separation and reunion pins are arranged in the locking and unlocking separation and reunion pin groove and a locking and unlocking groove. The improved idle lock of the blade structure is characterized in that protrusions are arranged on the faces C of the left blades and the right blades, and the protrusions are further provided with faces A matched with key teeth, the distance H between the faces A and the end of the left blades or right blades can be flexibly adjusted, the position of the key hole on the cross section of the idle core can be effectively controlled through variation of the distance H, the key hole can penetrate through the middles of the left blades and the right blades, the key hole can make no contact with the hole wall of the lock body, and smooth locking and unlocking are achieved.

Description

A kind of idle-run lock head of improved blade construction

Technical field

The present invention relates to a kind of lock, the idle-run lock head of especially a kind of improved blade construction.

Background technology

In prior art, idle-run lock head related to the present invention is Patent No.：ZL200820065664.6 and ZL200720153564.4.This idle-run lock head is due to adopting idle running latch structure, therefore idling core is completely in idle running in locking State, insertion unlocking tool or other object enter the keyhole of idling core, can arbitrarily rotate idling core, but cannot unlock, There is the function that very strong defence strength is unlocked with skilled unlocking, but the keyhole of this idle-run lock head is located at idling core External cylindrical surface edge, cross section is in crescent, and after key insertion keyhole, during twisting key, key is to the torsion of idling core simultaneously It is not all of acting on idling core, reason is a twisting key, the intrados compression idling core of key, its extrados simultaneously The hole wall pressing lock body carrys out the balance of confining force, and when so twisting idling core, the extrados of key and the hole wall of lock body are simultaneously Create frictional force, the power of key inner arc face pressure idling core is bigger, and the power of its outer arc face pressure lock body opening wall is bigger, the rubbing of generation Wiping power is also bigger, so when unlocking, often there is the phenomenon that feel has some setbacks, particularly rainy day idling core rain or idle running Core has entered dust, is such as cleaned with gasoline or antirust oil not in time, unlocks and just has some setbacks very much, or even is difficult to twisting idling core, this Defect present on structure design, is denounced by client.Its design feature is provided in pellet head and key inside idling core The tartar cooperation of spoon, because pellet is long, the diameter of idling core has strict restriction again, therefore keyhole can only be arranged at sky The external cylindrical surface edge of core.

The tapered end not dallied as lock core, the patent No. that keyhole is opened in lock core external cylindrical surface edge is ZL99234142.6.The product produced there is also the problem having some setbacks of unlocking, its solution such as Patent No. Described in the content of ZL01249752.5, because, during its tapered end locking, lock core does not dally, another is only with row's hoodle, therefore this Sample solve problem it is also possible that if two row's hoodles, also requires lock core to be idle running, such solution, and technique is difficult to reality Existing, or be difficult to produce in enormous quantities.

In addition, the tartar brill nozzle of crescent key shapes, its process has already fallen behind, outward appearance unsightly, tooth Flower is popular with the flute profile key market of CNC milling machine processing.

Content of the invention

The purpose of the present invention is exactly that the one kind providing to solve the deficiency of prior art is provided with idle running latch structure, lock The tapered end of core idle running.

It is characteristic of the invention that double-row marble pearl in prior art is improved to double-row blades, change keyhole in sky simultaneously The position of core, or change the shape of cross section of keyhole, or both changed the position in idling core for the keyhole, change key again The shape of keyhole, when accomplishing to unlock, the hole wall contact of key discord lock body, or although there being contact, but during twisting key, produce Raw frictional force substantially reduces, and is unlikely to dual lock and produces impact.

The present invention adopts the following technical scheme that to realize：

A kind of idle-run lock head of improved blade construction, including lock body, idling core, rear lock core, idling core is in front, rear lock core Rear, it is placed in together in the endoporus of lock body, the axial direction of idling core has idle running cotter way and keyhole, on idling core also Have two rows and the substantially vertical blade groove of cotter way that dallies, often row is each provided with several blade grooves, and idling core is additionally provided with Connection keyhole and the straight trough of blade groove, are provided with lobus sinister piece or lobus dexter piece and leaf spring, lobus sinister piece and the right side in blade groove One groove is provided with blade, groove along the rear lock core that is axially facing of idling core, put when having matched key, left by keyhole On blade and lobus dexter piece, the groove of setting aligns with idle running cotter way just, and idle running cotter way is provided with idle pins, and idle pins set Be equipped with left support arm and right support arm, left support arm be provided with left side square protruding, right support arm be provided with right side square protruding, left bank every All to there being a left side square protruding, left side square protruding is arranged at the upside of lobus sinister piece to one lobus sinister piece, and right row's is each All to there being a right side square protruding, right side square protruding is arranged at the upside of lobus dexter piece, left side square protruding to individual lobus dexter piece It is arranged to flange with the downside of right side square protruding, the fit depressions of setting on flange and lobus sinister piece and lobus dexter piece, empty Unlocking groove (hole) is provided with the breech face of core, unlocking groove is connected with idle running cotter way, and the front end of rear lock core is provided with unlocking Clutch cotter way, unlocking clutch cotter way is corresponding with unlocking groove, is provided with unlocking on-of pin in unlocking clutch cotter way and unlocking groove, its It is positioned next to idle pins, unlocking clutch cotter way is additionally provided with flat pearl spring, flat pearl spring presses unlocking on-of pin, lock body has Lock slots, lock slots are corresponding with unlocking clutch cotter way, and the rearward end of lock slots and unlocking on-of pin matches, and rear lock core is to open Lock main body, so only rear lock core rotates and could unlock,

Projection is provided with the C face of lobus sinister piece and lobus dexter piece, raised and straight trough matches, projects through straight trough and enter key Keyhole, the key tooth flower on the A face and matched key of setting in projection matches.

In the cross-sectional view of idling core, keyhole is generally within centre, the left side setting lobus sinister piece of keyhole, lobus sinister piece Left side the left support arm of idle pins, the right side setting lobus dexter piece of keyhole are set, the right side that the right side of lobus dexter piece arranges idle pins is propped up Arm.

The raised projection angle β with C face can be varied from, excursion can be from 70 degree to 110 degree.

Idle pins are arranged to overall structure or Split type structure, and Split type structure adopts left bank blade to arrange idle pins, right Row's blade is also provided with idle pins.

The front of matched key arranges one or two tooth grooves, and the back side is also provided with one or two tooth grooves, setting Tartar flute profile or be snakelike tank, or be interior milling tooth groove, or be outer milling tooth groove.

The front and back of matched key is respectively provided with two tooth grooves, during unlocking, a tooth groove in matched key front Coordinate with the blade of left bank and right row respectively with reverse side tooth groove, matched key reversion 180 degree insertion keyhole, front Coordinate with the blade of left bank and right row respectively with another tooth groove of reverse side, matched key need not distinguish positive and negative, at will Insertion keyhole can be unlocked.

A face in projection and end apart from H can flexible modulation, apart from H change can effective control keyhole in idle running The cross-section location of core.

During insertion matched key, lobus sinister piece is identical with the direction of motion of lobus dexter piece or contrary.

Clutch structure between idling core and rear lock core and lock body can have other deformation and improve.

A kind of idle-run lock head of improved blade construction of the present invention, is arranged by the C face 25 in lobus sinister piece 10 and lobus dexter piece 6 Raised 14, projection 14 arranges the A face 18 with key tooth flower 19 cooperation, as shown in Figure 21 and Figure 24, the distance of A face 18 and end again H can flexible modulation, apart from H change can effective control keyhole idling core cross-section location, as shown in fig. 6, keyhole 20 pass through from the centre of lobus sinister piece and lobus dexter piece, the hole wall contact of whole keyhole discord lock body, during unlocking, get along well because of key and lock The hole wall contact of body, therefore frictional resistance will not be produced, so unlocking will be smooth, the schematic perspective view of the matched key in Fig. 6 As shown in Figure 28 and Figure 29, the supporting key tooth flower of left bank blade is as shown in figure 28, the supporting key tooth flower of right row's blade As shown in figure 29, it is characterized in that key tooth flower is flute profile, and be separately positioned on the obverse and reverse of matched key, this situation Under, when idling core 2 insertion matched key, enter the tooth groove of key with the projection 14 of key tooth flower 19 cooperation, as Fig. 7 institute Show；Key tooth flower also can be not necessarily flute profile, and key tooth flower may be alternatively provided as structure as shown in figure 30, it is characterized in that two rows are different Tartar side by side, be arranged on a side of key together, the structure of certain tartar also can have other deformation and improve.

Brief description

Fig. 1 is structure 1 sectional view that the present invention inserts matched key；

Fig. 2 is the A-A sectional view of Fig. 1；

Fig. 3 is the B-B sectional view of Fig. 1；

Fig. 4 is the C-C sectional view of Fig. 1；

Fig. 5 is the D-D sectional view of Fig. 1；

Fig. 6 is the E-E sectional view of Fig. 1；

Fig. 7 is the F-F sectional view of Fig. 6；

Fig. 8 is the structure sectional view that the present invention extracts matched key；

Fig. 9 is the G-G sectional view of Fig. 8；

Figure 10 is the H-H sectional view of Fig. 8；

Figure 11 is the I-I sectional view of Fig. 8；

Figure 12 is the J-J sectional view of Fig. 8；

Figure 13 is the K-K sectional view of Fig. 8；

Figure 14 is structure 2 sectional view that the present invention inserts matched key；

Figure 15 is structure 2 sectional view that the present invention extracts matched key；

Figure 16 is structure 3 sectional view that the present invention inserts matched key；

Figure 17 is the perspective view of idling core 2 in present configuration 1；

Figure 18 is the structural representation of idling core 2 in present configuration 1；

Figure 19 is the L-L sectional view of Figure 18；

Figure 20 is the structural representation of lobus sinister piece of the present invention；

Figure 21 is the left view of Figure 20；

Figure 22 is the top view of Figure 20；

Figure 23 is the structural representation of lobus dexter piece of the present invention；

Figure 24 is the left view of Figure 23；

Figure 25 is the top view of Figure 23；

Figure 26 is the perspective view of lobus sinister piece of the present invention；

Figure 27 is the perspective view of lobus dexter piece of the present invention；

Figure 28 is the front perspective view of matched key structure 1 of the present invention；

Figure 29 is the back side perspective view of matched key structure 1 of the present invention；

Figure 30 is the perspective view of matched key structure 2 of the present invention；

Description of reference numerals：1st, lock body 2, idling core 3, unlocking groove (hole) 4, unlocking on-of pin 5, flat pearl spring 6th, lobus dexter piece 7, idle running cotter way 8, rear lock core 9, lock slots 10, lobus sinister piece 11, blade groove 12, left side are square convex Play 13, straight trough 14, projection 15, idle pins 16, leaf spring 17, matched key 18, A face 19, key tooth Spend 20, keyhole 21, groove 22, flange 23, B face 24, breech face 25, C face 26, unlocking clutch cotter way 27th, spoon doorway 28, rearward end 29, side end 30, D face 31, E face 32, left support arm 33, right support arm 34, company Junctor 35, right side square protruding

Specific embodiment

It is a kind of first embodiment of the idle-run lock head of improved blade construction of the present invention shown in Fig. 1-13, by idling core 2, lock body 1, unlocking on-of pin 4, flat pearl spring 5, idle pins 15, lobus sinister piece 10, lobus dexter piece 6, rear lock core 8, matched key 17, leaf Flat spring 16 grade forms, and front, rear lock core 8 rear, is placed in the endoporus of lock body 1, the axial direction of idling core 2 idling core 2 together Idle running cotter way 7 and keyhole 20 is had on direction, the radial direction of idling core 2 also has blade groove 11, blade groove 11 is divided into two rows, two Row's blade groove 11 is respectively arranged at the both sides of keyhole 20, and the left side of keyhole 20 is left bank, and the right side of keyhole 20 is right row, such as Shown in Fig. 1, often row is each provided with blade groove 11, blade groove 11 and the sky that several are distributed up and down along the axial direction of idling core 2 Groove 7 of shipping and reselling on another market is connected and substantially vertical, and idling core 2 also has straight trough 13, straight trough 13 connection keyhole 20 and blade groove 11, leaf It is provided with lobus sinister piece 10 or lobus dexter piece 6 and leaf spring 16 in film trap 11, the C face 25 of lobus sinister piece 10 and lobus dexter piece 6 is all provided with It is equipped with raised 14, the C face 25 of lobus sinister piece 10 is located at the right flank of lobus sinister piece, the C face 25 of lobus dexter piece 6 is located at the left side of lobus dexter piece Face, as shown in figure 8, projection 14 and straight trough 13 match, raised 14 enter keyhole 20 by straight trough 13, arrange on raised 14 Key tooth flower 19 on A face 18 and matched key 17 matches (as shown in Figure 7), and the upper side of lobus sinister piece 10 and lobus dexter piece 6 is equal It is provided with a groove 21, groove 21 is axially facing rear lock core 8 (as shown in Figure 9, Figure 10) along idling core 2；Groove 21 and joining Key tooth flower 19 on key kit 17 is corresponding, and keyhole 20 is put when having matched key 17, and lobus sinister piece 10 and lobus dexter piece 6 set The groove 21 put aligns (as shown in Figure 2 and Figure 3) with idle running cotter way 7 just；Extract matched key 17, lobus sinister piece 10 and lobus dexter In the presence of leaf spring 16, the groove 21 that it is arranged above deviates idle running cotter way 7 to piece 6, and idle running cotter way 7 is provided with idle pins 15, idle pins 15 are provided with left support arm 32 and right support arm 33, left support arm 32 and right support arm 33 connector 34 by its upper end Idle pins 15 connect integral, the U-shaped shape that formation is stood upside down, and left support arm 32 is arranged at the left side of lobus sinister piece 10, and right support arm 33 sets Be placed in the right side of lobus dexter piece 6, the right side of left support arm 32 is provided with several as the left side square protruding 12 of comb shape, left bank every One lobus sinister piece 10 all to there being a left side square protruding 12, as shown in figure 8, left side square protruding 12 is arranged at lobus sinister piece 10 Upside, the left side of right support arm 33 is provided with several as the right side square protruding 35 of comb shape, each lobus dexter piece 6 of right row All to there being a right side square protruding 35, as shown in figure 8, right side square protruding is arranged at the upside of lobus dexter piece 6, left side is square The downside of projection 12 and right side square protruding 35 is arranged to flange 22, and flange 22 and lobus sinister piece 10 and lobus dexter piece 6 are arranged Groove 21 match；As shown in Figures 2 and 3, when keyhole is put and had matched key 17, each flange 22 all enters corresponding Lobus sinister piece 10 and lobus dexter piece 6 on setting groove 21；As shown in Figure 9 and Figure 10, extract key, each flange 22 all departs from phase The groove 21 of setting on corresponding lobus sinister piece 10 and lobus dexter piece 6；As shown in figure 13, keyhole 20 is generally within centre, keyhole 20 left side setting lobus sinister piece 10, the left side of lobus sinister piece 10 arranges the left support arm 32 of idle pins 15, the right side setting of keyhole 20 Lobus dexter piece 6, the right side of lobus dexter piece 6 arranges the right support arm 33 of idle pins 15；It is provided with unlocking groove on the breech face 24 of idling core 2 (hole) 3, unlocking groove 3 is connected with idle running cotter way 7, and the front end of rear lock core 8 is provided with unlocking clutch cotter way 26, unlocking clutch cotter way 26 and unlocking groove 3 corresponding, be provided with unlocking on-of pin 4 in unlocking clutch cotter way 26 and unlocking groove 3, it is positioned next to idle pins 15, unlocking clutch cotter way 26 is additionally provided with flat pearl spring 5, and flat pearl spring 5 presses unlocking on-of pin 4, and unlocking on-of pin 4 presses again Idle pins 15, lock body 1 has lock slots 9, and lock slots 9 and unlocking clutch cotter way 26 are corresponding, lock slots 9 and unlocking on-of pin 4 rearward end 28 matches, and rear lock core 8 is unlocking main body, so only rear lock core 8 rotates and could unlock.

Unlocking condition as shown in figs. 1-7, during unlocking, inserts matched key 17, the key tooth flower 19 on matched key 17 pushes away A face 18 on dynamic raised 14, makes lobus sinister piece 10 and lobus dexter piece 6 for linear motion along the radial direction of idling core 2, makes lobus sinister piece 10 He Idle running cotter way 7 on the groove 21 and idling core 2 of lobus dexter piece 6 aligns, in idle pins 15 setting flange 22 and lobus sinister piece 10 with And the groove 21 on lobus dexter piece 6 is aligned, the flange 22 that idle pins 15 are arranged above it in the presence of flat pearl spring 5 enters lobus sinister Groove 21 on piece 10 and lobus dexter piece 6, idle pins 15 along the axial movement of idling core, its direction of motion towards spoon doorway 27, Unlocking on-of pin 4 also follows idle pins 15 to move in the same direction together, when unlocking clutch in the presence of flat pearl spring 5 simultaneously When pin 4 enters the lock slots 9 of unlocking groove 3 lock body 1 of end 28 disengaging thereafter of setting on idling core 2 tail end, unlocking on-of pin 4 blocks Between rear lock core 8 and idling core 2, rear lock core 8 and idling core 2 is made to be connected as a single entity, at this moment twisting key can be opened lock.

Blocking as shown in figures 8-13, during locking, extracts matched key 17, lobus sinister piece 10 and lobus dexter piece 6 are in blade bullet All reset in the presence of spring 16, the groove 21 that lobus sinister piece 10 and lobus dexter piece 6 are arranged above it in the presence of leaf spring 16 Promote idle pins 15 flange or flanges on 22, the flange 22 in idle pins 15 from the groove 21 lobus sinister piece 10 and lobus dexter piece 6 Release, make idle pins 15 along the axial movement of idling core 2, towards rear lock core 8, the movement of idle pins 15 can for its direction of motion Control unlocking on-of pin 4 to move along same direction, the rearward end 28 of unlocking on-of pin 4 enters the lock slots 9 of lock body 1 simultaneously, When the B face 23 of the rearward end of idle pins 15 and the breech face 24 of idling core 2 are substantially flush, unlocking on-of pin 4 departs from idling core 2, idling core 2 and rear lock core 8 separate, and idling core 2 can arbitrarily rotate and lock and be not turned on, and tapered end is in closure state, permissible Prevent from being unlocked by force with high intensity instrument insertion keyhole.

It is a kind of second embodiment of the idle-run lock head of improved blade construction of the present invention shown in Figure 14-15, and first Individual embodiment is a difference in that：Idling core 2 is different with the clutch structure of rear lock core 8, and unlocking on-of pin arranges side end 29 and lock The lock slots 9 of body match, rather than rearward end 28, and unlocking on-of pin and rear lock core have obvious difference, it is characterized in that unlocking On-of pin is provided with D face 30, and rear lock core is provided with E face 31, and D face 30 and E face 31 are corresponding and be arranged to wedge-like engagement, by this One cooperation, idle pins along idling core axial movement when, controllable unlocking on-of pin both along the axial movement of idling core, simultaneously again Moving radially along idling core, tapered end is in closure state as shown in figure 15, and at this moment the side end 29 of unlocking on-of pin enters lock The lock slots 9 of body, unlocking on-of pin completely disengages from idling core, when insertion matched key, the groove of lobus sinister piece and lobus dexter piece and sky The flange alignment shipped and resell on another market, under the pressure of flat pearl spring, by the wedge-like engagement in D face 30 and E face 31, unlocking on-of pin and Idle pins axially moving to spoon doorway along idling core, moving radially along idling core, make unlocking on-of pin by Progressive enter idling core unlocking groove while, its side end 29 also progressively disengages the lock slots 9 of lock body, when side end 29 is completely de- From lock slots 9, at this moment one end of unlocking on-of pin idling core unlocking groove and the other end, in unlocking clutch cotter way, now twists Key can be opened lock, and as shown in figure 14, the purpose of this example is that a kind of idle running of improved blade construction of the present invention is described Tapered end can be applicable in the idle-run lock head using front and back lock core clutch structure, and front and back lock core clutch structure also can make some deformation And improvement.

It is a kind of the 3rd embodiment of idle-run lock head of improved blade construction of the present invention shown in Figure 16, and first reality Apply example to be a difference in that：Idle pins cancel connector, form Split type structure, and left support arm becomes independent idle pins 15, right support arm Also independent idle pins 15 are become, unlocking on-of pin also must configure two, respectively with two idle pins cooperations, so setting Benefit is that keyhole can pass through whole idling core, and this structure has very big benefit for inserting-core lock, and matched key is permissible Promote, through whole idling core, the clutch being arranged in the middle of tapered end, and first embodiment cannot accomplish.

A kind of idle-run lock head of improved blade construction of the present invention, in Figure 22 and Figure 25, the projection in projection 14 and C face 25 Angle β can be varied from, excursion can be from 70 degree to 110 degree, 90 degree of relatively good processings.

Two tartar flute profiles of matched key of the present invention or have multiple changes, or be snakelike tank, or be interior milling tooth groove, or For outer milling tooth groove, in present configuration one, the front of matched key is snakelike tank, and the back side is interior milling tooth groove, as Figure 30 institute The tartar flute profile shown be two outer milling tooth grooves side by side, two outer two tooth grooves of milling side by side respectively with left bank blade and right row Blade coordinates.

In present configuration one, the front of matched key arranges a tooth groove, and the back side also only arranges a tooth groove, joins Key kit has to differentiate between positive and negative and could insert keyhole unlocking；The present invention also can accomplish matched key need not distinguish positive and negative with Just insertion keyhole can be unlocked, and the front of matched key arranges two tooth grooves, and the back side is also provided with two tooth grooves, supporting key The front insertion keyhole of spoon, a tooth groove in front and the cooperation of left bank blade, a tooth groove at the back side and right row's blade Cooperation, matched key rotates 180 degree insertion keyhole, another tooth groove in front and the cooperation of right row's blade, the back side another Bar tooth groove is coordinated with left bank blade.

, in tapered end insertion matched key, lobus sinister piece is identical with the direction of motion of lobus dexter piece for embodiment described above, this A kind of idle-run lock head of bright improved blade construction, when inserting matched key it is also possible to be arranged to lobus sinister piece and lobus dexter piece The direction of motion is just the opposite, and as shown in figure 13, the leaf spring joined together by lobus sinister piece and lobus dexter piece may be contained within the upside of blade, As long as the downside that the leaf spring joined together by lobus sinister piece or lobus dexter piece is arranged at blade can be accomplished.

Above-described is only the preferred embodiment of the present invention it is noted that for those of ordinary skill in the art For, without departing from the concept of the premise of the invention, some deformation can also be made and improve, these broadly fall into the present invention Protection domain.

Claims (8)

1. a kind of idle-run lock head of improved blade construction, including lock body, idling core, rear lock core, idling core (2) front, is locked afterwards Core (8) rear, is placed in the endoporus of lock body (1) together, and the axial direction of idling core (2) has idle running cotter way (7) and key Keyhole (20), idling core (2) also has two rows and the substantially vertical blade groove (11) of cotter way (7) that dallies, and often row is each provided with Several blade grooves (11), idling core (2) is additionally provided with the straight trough (13) of connection keyhole (20) and blade groove (11), blade It is provided with lobus sinister piece (10) or lobus dexter piece (6) and leaf spring (16), lobus sinister piece (10) and lobus dexter piece (6) are upper all in groove (11) It is provided with a groove (21), groove (21) is axially facing rear lock core (8) along idling core (2), keyhole (20) is put to have and joined During key kit (17), the groove (21) of lobus sinister piece (10) and the upper setting of lobus dexter piece (6) aligns with idle running cotter way (7) just, empty Groove (7) of shipping and reselling on another market is provided with idle pins (15), and idle pins (15) are provided with left support arm (32) and right support arm (33), left support arm (32) It is provided with left side square protruding (12), right support arm (33) is provided with right side square protruding (35), each lobus sinister piece of left bank (10) all to there being left side square protruding (12), left side square protruding (12) is arranged at the upside of lobus sinister piece (10), right row Each lobus dexter piece (6) all to there being right side square protruding (35), right side square protruding (35) is arranged at lobus dexter piece (6) Upside, the downside of left side square protruding (12) and right side square protruding (35) is arranged to flange (22), flange (22) and a left side The groove (21) of blade (10) and the upper setting of lobus dexter piece (6) matches, and the breech face (24) of idling core (2) is provided with unlocking Groove (3), unlocking groove (3) is connected with idle running cotter way (7), and the front end of rear lock core (8) is provided with unlocking clutch cotter way (26), unlocks Clutch cotter way (26) and unlocking groove (3) are corresponding, are provided with unlocking on-of pin in unlocking clutch cotter way (26) and unlocking groove (3) (4), it is positioned next to idle pins (15), and unlocking clutch cotter way (26) is additionally provided with flat pearl spring (5), and flat pearl spring (5) is pressed Unlocking on-of pin (4), lock body (1) has lock slots (9), and lock slots (9) and unlocking clutch cotter way (26) are corresponding, lock slots (9) match with the rearward end (28) of unlocking on-of pin (4), rear lock core (8) is unlocking main body, so only rear lock core (8) turns Move and could unlock,

It is characterized in that：It is provided with the C face (25) of lobus sinister piece (10) and lobus dexter piece (6) raised (14), raised (14) and straight trough (13) match, raised (14) enter keyhole (20) by straight trough (13), raised (14) the above A face (18) of setting and supporting key Key tooth flower (19) on spoon (17) matches.

2. a kind of idle-run lock head of improved blade construction according to claim 1, is characterized in that：In idling core (2) In cross-sectional view, keyhole (20) arranges lobus sinister piece (10) generally within centre, the left side of keyhole (20), lobus sinister piece (10) The left support arm (32) in left side setting idle pins (15), right side setting lobus dexter piece (6) of keyhole (20), the right side of lobus dexter piece (6) The right support arm (33) of setting idle pins (15).

3. a kind of idle-run lock head of improved blade construction according to claim 1, is characterized in that：Raised (14) and C face (25) projection angle β can be varied from, excursion can be from 70 degree to 110 degree.

4. a kind of idle-run lock head of improved blade construction according to claim 1, is characterized in that：Insertion matched key (17), when, lobus sinister piece (10) is identical or contrary with the direction of motion of lobus dexter piece (6).

5. a kind of idle-run lock head of improved blade construction according to claim 1, is characterized in that：Idle pins (15) are arranged Integral structure or Split type structure, Split type structure adopts left bank blade to arrange an idle pins (15), and right row's blade is also provided with one Individual idle pins (15).

6. a kind of idle-run lock head of improved blade construction according to claim 1, is characterized in that：Matched key (17) Front arranges one or two tooth grooves, and the back side is also provided with one or two tooth grooves, the tartar flute profile of setting or be snakelike tank, Or be interior milling tooth groove, or it is outer milling tooth groove.

7. the idle-run lock head of a kind of improved blade construction according to claim 1 or 6, is characterized in that：Matched key (17) front and back is respectively provided with two tooth grooves, during unlocking, a tooth groove in matched key (17) front and reverse side Article one, tooth groove is coordinated with the blade of left bank and right row respectively, matched key (17) reversion 180 degree insertion keyhole (20), front Coordinate with the blade of right row and left bank respectively with another tooth groove at the back side, matched key (17) need not distinguish positive and negative, At will insertion keyhole (20) can be unlocked.

8. a kind of idle-run lock head of improved blade construction according to claim 1, is characterized in that：A on raised (14) Face (18) and end apart from H can flexible modulation, the change apart from H can the horizontal stroke in idling core (2) for the effective control keyhole (20) Sectional position.